/* CSE 316 course site — warm-light design system, elevated.
   ivory bg, parchment cards, burnt-orange kicker + dash, indigo accent.
   Type: Fraunces (display) · Inter (body/UI) · JetBrains Mono (bits & numbers). */

/* ---------- self-hosted webfonts (shared at site/assets/fonts/) ---------- */
@font-face{font-family:"Fraunces";font-style:normal;font-weight:600;font-display:swap;
  src:url("../../assets/fonts/fraunces-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Fraunces";font-style:normal;font-weight:700;font-display:swap;
  src:url("../../assets/fonts/fraunces-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:400;font-display:swap;
  src:url("../../assets/fonts/inter-latin-400-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:500;font-display:swap;
  src:url("../../assets/fonts/inter-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:600;font-display:swap;
  src:url("../../assets/fonts/inter-latin-600-normal.woff2") format("woff2")}
@font-face{font-family:"Inter";font-style:normal;font-weight:700;font-display:swap;
  src:url("../../assets/fonts/inter-latin-700-normal.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:500;font-display:swap;
  src:url("../../assets/fonts/jetbrains-mono-latin-500-normal.woff2") format("woff2")}
@font-face{font-family:"JetBrains Mono";font-style:normal;font-weight:700;font-display:swap;
  src:url("../../assets/fonts/jetbrains-mono-latin-700-normal.woff2") format("woff2")}

:root{
  --bg:#F8F6F0; --card:#EFEBDF; --card2:#FDFCF8; --line:#D8D2C2; --line2:#E3DECF;
  --ink:#232A45; --mut:#687089; --mut2:#9A9DB0;
  --kick:#B97134; --dash:#E8820F; --ind:#3A47A8; --ind2:#2E3986;
  --ok:#2F8F5B; --okbg:#DFF0E7; --bad:#C4453C; --badbg:#FBEAE8;
  --serif:"Fraunces",Georgia,"Times New Roman",serif;
  --sans:"Inter",-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,Helvetica,Arial,sans-serif;
  --mono:"JetBrains Mono",ui-monospace,Menlo,Consolas,"Liberation Mono",monospace;
  --shadow:0 1px 2px rgba(35,42,69,.05),0 2px 10px rgba(35,42,69,.07);
  --shadow-lift:0 3px 6px rgba(35,42,69,.08),0 10px 24px rgba(35,42,69,.12);
  --r:14px;
}
*{box-sizing:border-box}
[hidden]{display:none !important}
html{-webkit-text-size-adjust:100%;scrollbar-width:thin;scrollbar-color:var(--line) var(--bg)}
body{
  margin:0; background:var(--bg); color:var(--ink);
  font:16px/1.6 var(--sans);
  font-feature-settings:"cv05" 1; /* Inter: open 'l' */
}
a{color:var(--ind);transition:color .15s ease}
code,.mono{font-family:var(--mono)}
::selection{background:#F3D9B8;color:var(--ink)}
:focus-visible{outline:2px solid var(--ind);outline-offset:2px;border-radius:4px}

/* ---------- layout ---------- */
.wrap{max-width:1020px;margin:0 auto;padding:0 24px}
main.wrap{width:100%;padding:6px 28px 64px}
.main footer.site .wrap{max-width:1020px}

/* ================= app frame (v8) ================= */
.app{display:flex;min-height:100vh}
.side{width:240px;flex:0 0 240px;background:#1E2440;color:#C9CEDF;
  display:flex;flex-direction:column;position:sticky;top:0;height:100vh;
  overflow-y:auto;scrollbar-width:thin;z-index:60}
.sbrand{display:flex;gap:12px;align-items:center;padding:20px 18px 6px;
  text-decoration:none}
.sbrand .ltile{flex:0 0 auto;width:38px;height:38px;border-radius:10px;
  background:#F8F6F0;display:flex;align-items:center;justify-content:center;
  box-shadow:0 2px 10px rgba(0,0,0,.28)}
.sbrand .word{font:600 18.5px var(--serif);color:#E3DECF;letter-spacing:.01em}
.scourse{display:block;margin:12px 14px 2px;padding:11px 14px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.10);
  text-decoration:none;transition:background .15s ease}
.scourse:hover{background:rgba(255,255,255,.11)}
.scourse .ck{display:block;font:700 11px var(--mono);letter-spacing:.14em;color:#F0B27A}
.scourse .cn{display:block;font:600 12.5px var(--sans);color:#C9CEDF;
  line-height:1.35;margin-top:3px}
.snav{padding:2px 12px 12px;flex:1}
.sgroup{font:700 10.5px var(--sans);letter-spacing:.15em;color:#7E88AE;
  text-transform:uppercase;padding:18px 10px 7px}
.snav a{display:flex;align-items:center;gap:11px;color:#C9CEDF;text-decoration:none;
  font:600 13.5px var(--sans);padding:10px 12px;border-radius:10px;margin:1px 0;
  transition:background .15s,color .15s}
.snav a:hover{background:rgba(255,255,255,.08);color:#fff}
.snav a.here{background:var(--dash);color:#fff}
.snav a.here:hover{background:var(--dash)}
.snav a svg{flex:0 0 auto;opacity:.9}
.topid{margin-left:auto;display:flex;align-items:center;gap:13px;min-width:0}
.topid .uname{font:600 13.5px var(--sans);color:var(--ink);max-width:230px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topid .urole{font:700 10.5px var(--mono);letter-spacing:.12em;color:var(--kick);
  text-transform:uppercase;background:var(--card);border:1px solid var(--line);
  border-radius:99px;padding:4px 11px;white-space:nowrap}
.topid a.uout{font:600 12.5px var(--sans);color:var(--mut2);text-decoration:none;
  white-space:nowrap}
.topid a.uout:hover{color:var(--ink)}
@media(max-width:600px){.topid{gap:8px}.topid .uname{max-width:105px}
  .topid .urole{padding:3px 8px;font-size:9.5px}}

.main{flex:1;min-width:0;display:flex;flex-direction:column;min-height:100vh}
.topbar{position:sticky;top:0;z-index:40;background:rgba(248,246,240,.94);
  backdrop-filter:blur(8px);border-bottom:1px solid var(--line);
  display:flex;align-items:center;gap:14px;padding:11px 24px}
.topbar .crumb{font:600 13.5px var(--sans);color:var(--mut);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.topbar .crumb b{color:var(--ink)}
.menubtn{display:none;background:none;border:1px solid var(--line);border-radius:9px;
  width:38px;height:38px;align-items:center;justify-content:center;cursor:pointer;
  color:var(--ink);flex:0 0 auto}
.menubtn:hover{border-color:var(--mut2)}
.scrim{position:fixed;inset:0;background:rgba(20,24,40,.45);z-index:55;
  opacity:0;pointer-events:none;transition:opacity .2s ease}
.scrim.show{opacity:1;pointer-events:auto}

@media(max-width:980px){
  .side{position:fixed;left:0;top:0;bottom:0;height:100dvh;width:272px;
    transform:translateX(-105%);transition:transform .25s ease;
    box-shadow:0 0 40px rgba(20,24,40,.4)}
  .side.open{transform:none}
  .menubtn{display:inline-flex}
}

/* legacy nav classes kept for compatibility */
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:16.5px;
  color:var(--ink);text-decoration:none;letter-spacing:.1px}
.brand .logo{flex:0 0 auto;display:block}
.navlinks{display:none}

/* ---------- headings ---------- */
.kicker{
  color:var(--kick); font-size:12.5px; font-weight:700;
  text-transform:uppercase; letter-spacing:.16em; margin:34px 0 8px;
  font-family:var(--sans);
}
h1.title{font-family:var(--serif);font-weight:700;font-size:clamp(28px,4.5vw,38px);
  line-height:1.14;margin:0 0 4px;letter-spacing:-.01em}
h1.title .mono{font-size:.72em;color:var(--ind);vertical-align:.06em;letter-spacing:0}
h1.title:after,h2.dash:after{
  content:""; display:block; width:52px; height:4px; border-radius:2px;
  background:var(--dash); margin-top:12px;
}
h2.dash{font-family:var(--serif);font-weight:600;font-size:24px;margin:40px 0 14px;
  letter-spacing:-.005em}
.sub{color:var(--mut);font-size:15.5px;margin:12px 0 0;max-width:660px}
.sub.mono{font-family:var(--mono);font-size:13px}

/* ---------- cards ---------- */
.card{
  background:var(--card); border:1px solid var(--line); border-radius:var(--r);
  padding:20px 22px; box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card h3{margin:0 0 8px;font-family:var(--serif);font-weight:600;font-size:19px}
a.card{text-decoration:none;color:var(--ink)}
a.card:hover,.card.as:not(.noclick):hover{transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.grid2{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media(max-width:760px){.grid2{grid-template-columns:1fr}}

/* ---------- chips ---------- */
.chips{display:flex;gap:8px;flex-wrap:wrap;margin:14px 0 0}
.chip{display:inline-flex;align-items:center;gap:6px;font:600 13px/1 var(--sans);
  color:var(--mut);background:var(--card);border:1px solid var(--line);
  border-radius:999px;padding:7px 13px;white-space:nowrap}
.chip b{color:var(--ink);font-weight:700}
.chip.accent{color:var(--kick);border-color:#E5C9A8;background:#F7EEDF}

/* ---------- calendar ---------- */
.weeknow{margin:16px 0 0}
.nowpill{display:inline-flex;align-items:center;gap:8px;font:700 12.5px/1 var(--sans);
  letter-spacing:.08em;text-transform:uppercase;color:var(--ind);
  background:#E8EAF7;border:1px solid #C3C9EC;border-radius:999px;padding:8px 15px}
.nowpill .dotpulse{width:8px;height:8px;border-radius:50%;background:var(--ind);
  animation:pulse 2s ease-in-out infinite}
@keyframes pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.45;transform:scale(.8)}}
@media (prefers-reduced-motion:reduce){.nowpill .dotpulse{animation:none}}

.weeks{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}
@media(max-width:800px){.weeks{grid-template-columns:1fr}}
.week{padding:16px 18px 14px;position:relative}
.week .wk{display:flex;align-items:center;gap:12px;margin-bottom:10px}
.week .medal{flex:0 0 40px;width:40px;height:40px;border-radius:50%;
  background:var(--card2);border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;
  font:700 17px/1 var(--serif);color:var(--dash)}
.week .wk b{font-family:var(--sans);font-size:13px;text-transform:uppercase;
  letter-spacing:.1em;color:var(--kick);display:block}
.week .wk span.dates{display:block;font:500 12.5px var(--mono);color:var(--mut);margin-top:2px}
.week.now{border-color:var(--ind);box-shadow:0 0 0 3px #C9CEEE,var(--shadow)}
.week.now .medal{background:var(--ind);border-color:var(--ind);color:#fff}
.thisweek{margin-left:auto;font:700 10.5px/1 var(--sans);letter-spacing:.1em;color:#fff;
  background:var(--ind);border-radius:999px;padding:5px 10px}
.sess{display:flex;align-items:baseline;gap:9px;text-decoration:none;color:var(--ink);
  padding:9px 10px;border-radius:10px;border:1px solid transparent;margin:2px -4px;
  transition:background .15s,border-color .15s;flex-wrap:wrap}
.sess:hover{background:var(--card2);border-color:var(--line)}
.sess .sn{font:700 12.5px var(--mono);color:var(--ind);flex:0 0 auto}
.sess .st{font-size:14.5px;font-weight:600;flex:1 1 auto}
.sess .ships{display:inline-flex;gap:7px;align-items:center;flex:0 0 auto;margin-left:auto}
.sess .ships svg{display:block;opacity:.75}
.sess:hover .ships svg{opacity:1}
.badge{display:inline-flex;align-items:center;font:700 10.5px var(--mono);letter-spacing:.06em;
  padding:3px 9px;border-radius:20px;flex:0 0 auto}
.badge.quiz{background:var(--okbg);color:var(--ok);border:1px solid #A9D6BE}
.badge.mid{background:var(--badbg);color:var(--bad);border:1px solid #E5B3AE}
.midrow{display:flex;align-items:center;gap:9px;padding:9px 10px;margin:2px -4px;
  color:var(--bad);font-weight:700;font-size:14px;letter-spacing:.02em}

/* ---------- lecture pages ---------- */
.readline{margin:16px 0 0;color:var(--mut);font-size:14.5px}
.readline b{color:var(--ink)}
.lechips{margin-top:14px}

.player{background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:10px;box-shadow:var(--shadow)}
.player video{width:100%;border-radius:10px;border:1px solid var(--ink);
  background:#000;display:block}
.playercap{display:flex;justify-content:space-between;align-items:center;gap:10px;
  padding:10px 8px 4px;flex-wrap:wrap}
.playercap .capname{font-size:13.5px;font-weight:600;color:var(--mut)}
.playercap .mono{font:500 12px var(--mono);color:var(--mut2)}

.demoshell{background:var(--card);border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow)}
.demohead{display:flex;align-items:center;gap:10px;padding:10px 16px;
  border-bottom:1px solid var(--line);background:var(--card)}
.demohead .dot{width:9px;height:9px;border-radius:50%;background:var(--dash);flex:0 0 auto}
.demohead .dname{font-size:13.5px;font-weight:600;color:var(--ink);flex:1 1 auto;min-width:0}
.demohead .mono{font:500 11.5px var(--mono);color:var(--mut2)}
.demohead a{margin-left:auto;font-size:13px;font-weight:600;text-decoration:none;
  white-space:nowrap}
.demohead a:hover{text-decoration:underline}
.demoframe{width:100%;height:620px;border:0;background:#fff;display:block}

video{width:100%;border-radius:12px;border:1px solid var(--line);background:#000;display:block}
.assetcap{display:flex;justify-content:space-between;align-items:baseline;gap:10px;
  color:var(--mut);font-size:13.5px;margin:8px 2px 0;flex-wrap:wrap}
.assetcap a{font-weight:600}
.block{margin-top:30px}

.practicecta{display:inline-flex;align-items:center;gap:10px;background:var(--ind);
  color:#fff;text-decoration:none;font:600 15px var(--sans);border-radius:999px;
  padding:12px 24px;box-shadow:var(--shadow);
  transition:background .15s,transform .15s,box-shadow .15s}
.practicecta:hover{background:var(--ind2);color:#fff;transform:translateY(-1px);
  box-shadow:var(--shadow-lift)}
.practicecta:active{transform:translateY(0)}

.pn{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:44px}
@media(max-width:640px){.pn{grid-template-columns:1fr}}
.pn a.pncard{display:block;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r);padding:14px 18px;text-decoration:none;color:var(--ink);
  box-shadow:var(--shadow);transition:transform .18s,box-shadow .18s}
.pn a.pncard:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.pn a.pncard .dir{font-size:12px;font-weight:700;letter-spacing:.1em;color:var(--mut2);
  text-transform:uppercase}
.pn a.pncard .pt{display:block;font-family:var(--serif);font-weight:600;font-size:16.5px;
  margin-top:4px}
.pn a.pncard .pt .mono{font-family:var(--mono);font-size:12.5px;color:var(--ind);
  font-weight:700;margin-right:6px}
.pn .pnnext{text-align:right}
.pn span.pnspacer{display:block}

/* ---------- buttons & inputs ---------- */
.btn{
  display:inline-block; background:var(--ind); color:#fff; border:0; border-radius:10px;
  padding:11px 22px; font:600 15px var(--sans); cursor:pointer;
  text-decoration:none;
  transition:background .15s,transform .12s,box-shadow .15s;
  box-shadow:0 1px 2px rgba(35,42,69,.15);
}
.btn:hover{background:var(--ind2)}
.btn:active{transform:translateY(1px);box-shadow:none}
.btn:disabled{background:var(--mut2);cursor:not-allowed;transform:none}
.btn.ghost{background:var(--card2);color:var(--ind);border:1px solid var(--ind);
  box-shadow:none}
.btn.ghost:hover{background:#E8EAF7}
.btn.danger{background:var(--bad)}
.btn.danger:hover{background:#A93A32}
.btn.big{padding:14px 32px;font-size:16px}
.btn.sm{padding:8px 16px;font-size:14px}
label.f{display:block;font-size:12.5px;font-weight:700;color:var(--mut);margin:16px 0 6px;
  text-transform:uppercase;letter-spacing:.09em}
input[type=text],input[type=password],select{
  width:100%; padding:12px 14px; font:500 15px var(--mono); color:var(--ink);
  background:var(--card2); border:1px solid var(--line); border-radius:10px;
  transition:border-color .15s,box-shadow .15s;
}
input[type=text]:hover,input[type=password]:hover,select:hover{border-color:var(--mut2)}
input:focus,select:focus{outline:none;border-color:var(--ind);
  box-shadow:0 0 0 3px #C9CEEE}
input:focus-visible,select:focus-visible{outline:none}
.fieldrow{display:flex;align-items:center;gap:10px;margin:10px 0;flex-wrap:wrap}
.fieldrow label{flex:0 0 240px;font-size:14.5px}
.fieldrow input{flex:1;min-width:160px;width:auto}
.fieldrow .unit{font:600 13px var(--mono);color:var(--mut);min-width:52px}
@media(max-width:600px){.fieldrow label{flex-basis:100%}}

/* ---------- verdicts ---------- */
.verdict{margin:16px 0;padding:13px 17px;border-radius:11px;font-size:15px;font-weight:600;
  border-left:5px solid}
.verdict.good{background:var(--okbg);border-color:var(--ok);color:#1E6B43}
.verdict.bad{background:var(--badbg);border-color:var(--bad);color:#93332C}
.verdict .mono{font-weight:700}

/* field check marks */
.fchk{font:700 15px var(--mono);min-width:20px}
.fchk.ok{color:var(--ok)} .fchk.no{color:var(--bad)}
.expected{font:500 13px var(--mono);color:var(--mut)}
input.okin{border-color:var(--ok);background:var(--okbg)}
input.badin{border-color:var(--bad);background:var(--badbg)}

/* ---------- questions ---------- */
.q{margin-top:18px}
.q .qhead{display:flex;justify-content:space-between;gap:10px;align-items:baseline;margin-bottom:8px}
.q .qhead b{font-size:15.5px}
.q .marks{font:700 12.5px var(--mono);color:var(--kick);white-space:nowrap}
.q pre{
  white-space:pre-wrap; word-break:break-word; font:500 13.5px/1.65 var(--mono);
  background:var(--card2); border:1px solid var(--line); border-radius:10px;
  padding:13px 15px; margin:0 0 10px;
}

/* ---------- topic picker ---------- */
.topicfam{margin-top:18px}
.topicfam h3{font-family:var(--sans);font-size:13px;color:var(--kick);
  text-transform:uppercase;letter-spacing:.1em;margin:0 0 6px;font-weight:700}
.topic{display:flex;gap:10px;align-items:baseline;font-size:14.5px;padding:5px 0;
  cursor:pointer;border-radius:8px}
.topic:hover{color:var(--ind)}
.topic input{accent-color:var(--ind);transform:translateY(1px);width:16px;height:16px;
  cursor:pointer}
.topic .tm{font:500 12px var(--mono);color:var(--mut2)}
.controls{display:flex;gap:14px;align-items:center;margin-top:20px;flex-wrap:wrap}

/* ---------- score ---------- */
.scoreline{display:flex;justify-content:space-between;align-items:baseline;gap:14px}
.scoreline span:first-child{font:700 clamp(30px,5vw,42px)/1.1 var(--serif);color:var(--ink)}
.scoreline span:last-child{font:700 20px var(--mono);color:var(--mut)}
.scorebar{height:10px;border:0;border-radius:6px;background:var(--line2);
  overflow:hidden;margin:14px 0 12px}
.scorebar>div{height:100%;border-radius:6px;transition:width .6s ease}
.scorebar>div.good{background:var(--ok)} .scorebar>div.bad{background:var(--bad)}

/* ---------- assessments list ---------- */
.aslist{display:grid;gap:12px;margin-top:14px}
.as{display:block;cursor:pointer}
.asrow{display:flex;justify-content:space-between;gap:12px;align-items:center}
.as.closedas{cursor:default}
.as.closedas .ttl{color:var(--mut)}
.as.closedas>.asrow>div>small{color:var(--mut2)}
.as .ttl{font-weight:700;font-size:15.5px}
.as small{display:block;color:var(--mut);font-size:12px;font-family:var(--mono);margin-top:3px}
.as .st{font:700 12px var(--mono);white-space:nowrap}
.as .st.open{color:var(--ok)} .as .st.shut{color:var(--mut2)}
/* a date the Department has not fixed yet, shown under the window */
.as small.whennote{color:var(--kick);font-family:var(--sans);font-size:12px;
  margin-top:5px;font-style:italic}

/* ---------- assessment state badges ---------- */
.stbadge{display:inline-block;font:700 10.5px var(--mono);letter-spacing:.05em;
  padding:5px 11px;border-radius:20px;white-space:nowrap;border:1px solid}
.stbadge.upcoming{background:#F1EFE8;color:var(--mut);border-color:var(--line)}
.stbadge.notstarted{background:var(--okbg);color:var(--ok);border-color:#A9D6BE}
.stbadge.inprog{background:#E8EAF7;color:var(--ind);border-color:#C3C9EC}
.stbadge.submitted{background:var(--okbg);color:#1E6B43;border-color:#A9D6BE}
.stbadge.closedb{background:#F1EFE8;color:var(--mut2);border-color:var(--line)}
.asgroup{font-size:13px;color:var(--kick);text-transform:uppercase;
  letter-spacing:.1em;margin:30px 0 4px;font-weight:700}
.as.noclick{cursor:default}
.as .actions{display:flex;gap:10px;align-items:center;flex-wrap:wrap}

/* On a phone the title, the state badge and the button cannot sit on one
   line: the badge carries a whole sentence ("UPCOMING · opens 27 Sept,
   00:00") and is nowrap, so the row used to push the page sideways. Stack
   them instead and let the badge wrap its own text. */
@media(max-width:640px){
  .asrow{flex-wrap:wrap;align-items:flex-start}
  .asrow>*{min-width:0;max-width:100%}
  .as .actions{width:100%;justify-content:flex-start;margin-top:8px}
  .stbadge{white-space:normal}
  .as small{overflow-wrap:anywhere}
}

/* ---------- timed attempt: confirm card + sticky countdown ---------- */
.confirmcard{border-left:5px solid var(--dash);margin:16px 0}
.confirmcard b{font-size:15.5px;font-family:var(--serif);font-weight:600;font-size:17px}
.timerbar{
  position:sticky; top:70px; z-index:15; display:flex; justify-content:space-between;
  align-items:center; gap:14px; flex-wrap:wrap; margin:16px 0;
  background:var(--card); border:1px solid var(--line); border-radius:999px;
  padding:10px 22px; box-shadow:var(--shadow-lift);
}
.timerbar .clock{font:700 24px var(--mono);color:var(--ind);letter-spacing:.03em;
  font-variant-numeric:tabular-nums}
.timerbar.warn .clock{color:var(--bad)}
.timerbar.warn{border-color:var(--bad);background:var(--badbg);
  animation:warnpulse 1.2s ease-in-out infinite}
@keyframes warnpulse{0%,100%{box-shadow:var(--shadow-lift)}
  50%{box-shadow:0 0 0 4px rgba(196,69,60,.18),var(--shadow-lift)}}
@media (prefers-reduced-motion:reduce){.timerbar.warn{animation:none}}
.timerbar .saveline{font:500 12px var(--mono);color:var(--mut)}

/* ---------- tables ---------- */
table.plain{border-collapse:collapse;width:100%;margin-top:12px;font-size:14px}
table.plain th,table.plain td{border:1px solid var(--line);padding:8px 11px;text-align:left}
table.plain th{background:var(--card);font-size:12px;text-transform:uppercase;
  letter-spacing:.07em;color:var(--mut);font-family:var(--sans)}
table.plain td{font:500 13px var(--mono);background:var(--card2)}
.tablewrap{overflow-x:auto}

/* ---------- misc ---------- */
.muted{color:var(--mut)} .small{font-size:13px}
.spin{color:var(--mut);font-size:14.5px;padding:12px 0}
.spin::before{content:"";display:inline-block;width:13px;height:13px;margin-right:9px;
  border:2px solid var(--line);border-top-color:var(--kick);border-radius:50%;
  vertical-align:-2px;animation:spinr .8s linear infinite}
@keyframes spinr{to{transform:rotate(360deg)}}
@media (prefers-reduced-motion:reduce){.spin::before{animation:none}}
hr.soft{border:0;border-top:1px solid var(--line);margin:36px 0}

/* ---------- footer ---------- */
footer.site{
  border-top:1px solid var(--line); margin-top:auto; padding:22px 0 30px;
  color:var(--mut); font-size:13px;
}
footer.site .fline{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
footer.site .logo{opacity:.85}
footer.site .adm{margin-left:auto}
footer.site a{color:var(--mut2);text-decoration:none;font-size:12.5px}
footer.site a:hover{color:var(--ind)}

/* ---------- mobile ---------- */
@media(max-width:640px){
  .wrap{padding:0 16px}
  main.wrap{padding:4px 16px 56px}
  .topbar{padding:10px 14px}
  .topbar .crumb{font-size:12.5px}
  .demoframe{height:440px}
  .demohead .mono{display:none}
  .timerbar{top:62px;padding:9px 16px}
  .timerbar .clock{font-size:20px}
  .fieldrow .unit{min-width:auto}
  .chips{gap:6px}
  .chip{padding:6px 11px;font-size:12px}
  h2.dash{font-size:21px;margin-top:32px}
  .pagehead{padding:20px 18px}
  .svbar{gap:10px}
  .svbtn{padding:9px 14px;font-size:13px}
  .svcount{min-width:84px;font-size:12px}
  .pn{margin-top:30px}
  .scoreline span:last-child{font-size:16px}
}

/* ---------- print (lecture pages: keep the text, drop the chrome) ---------- */
@media print{
  header.site,footer.site,.side,.topbar,.scrim,.demoshell,.pn,.practicecta,.chips,.navlinks,.secpills,.svbar,.svhead{display:none !important}
  body{background:#fff;color:#000;font-size:12pt}
  .card,.player{box-shadow:none;border-color:#bbb;background:#fff}
  video{display:none}
  .playercap::after{content:" (video on the course site)"}
  a{color:#000;text-decoration:none}
  h1.title:after,h2.dash:after{background:#999}
}

/* ---- lecture slide viewer (v8: framed) ---- */
.svframe{background:var(--card);border:1px solid var(--line);border-radius:16px;
  overflow:hidden;box-shadow:var(--shadow)}
.svhead{display:flex;align-items:center;gap:10px;padding:9px 14px;
  border-bottom:1px solid var(--line)}
.svdots{display:inline-flex;gap:5px;flex:0 0 auto}
.svdots i{width:9px;height:9px;border-radius:50%;display:block}
.svdots i:nth-child(1){background:var(--dash)}
.svdots i:nth-child(2){background:var(--ind)}
.svdots i:nth-child(3){background:var(--ok)}
.svtitle{font:600 13px var(--sans);color:var(--mut);overflow:hidden;
  text-overflow:ellipsis;white-space:nowrap}
.svfull{margin-left:auto;background:var(--card2);border:1px solid var(--line);
  border-radius:8px;width:32px;height:28px;display:inline-flex;align-items:center;
  justify-content:center;cursor:pointer;color:var(--mut);flex:0 0 auto}
.svfull:hover{color:var(--ind);border-color:var(--ind)}
.svstage{position:relative;aspect-ratio:1400/788;background:#fff}
.svstage img{position:absolute;inset:0;width:100%;height:100%;object-fit:contain;
  cursor:pointer;display:block}
.svstage:fullscreen{background:#101420}
.svstage:fullscreen img{object-fit:contain}
.svbar{display:flex;align-items:center;justify-content:center;gap:18px;
  padding:11px 14px;border-top:1px solid var(--line);background:var(--card)}
.svbtn{background:var(--card2);border:1px solid var(--line);border-radius:9px;
  padding:9px 18px;font:600 14px var(--sans);color:var(--ink);cursor:pointer}
.svbtn:hover:not(:disabled){border-color:var(--kick);color:var(--kick)}
.svbtn:disabled{opacity:.35;cursor:not-allowed}
.svcount{font:600 13px var(--mono);color:var(--mut);min-width:110px;text-align:center}
.svhint{text-align:center;font-size:12px;color:var(--mut2);margin:8px 0 0}
/* legacy v7 class kept */
.slideviewer img{width:100%;height:auto;display:block;border:1px solid var(--line);
  border-radius:14px;background:#fff;cursor:pointer}

/* ---- section pills on lecture pages ---- */
.secpills{display:flex;gap:8px;flex-wrap:wrap;margin:16px 0 2px}
.secpills a{font:600 12.5px var(--sans);color:var(--ind);background:#E8EAF7;
  border:1px solid #C3C9EC;border-radius:999px;padding:7px 15px;text-decoration:none;
  transition:background .15s}
.secpills a:hover{background:#DDE2F6}

/* ---- page head band (dashboard & section landings) ---- */
.pagehead{background:linear-gradient(132deg,#232A45 20%,#2E3986 115%);color:#fff;
  border-radius:18px;padding:26px 28px 24px;margin-top:20px;position:relative;
  overflow:hidden;box-shadow:var(--shadow-lift)}
.pagehead::after{content:"";position:absolute;right:-70px;top:-80px;width:260px;height:260px;
  border-radius:50%;background:radial-gradient(circle,rgba(232,130,15,.28),transparent 65%)}
.pagehead .kicker{color:#F0B27A;margin:0 0 8px}
.pagehead h1.title{color:#fff;margin:0}
.pagehead h1.title .mono{color:#F0B27A}
.pagehead h1.title:after{background:var(--dash)}
.pagehead .sub{color:#C9CEDF;position:relative;z-index:1}
.pagehead .chips{position:relative;z-index:1}
.pagehead .chip{background:rgba(255,255,255,.09);border-color:rgba(255,255,255,.22);
  color:#DDE1F0}
.pagehead .chip b{color:#fff}
.pagehead .chip.accent{color:#F0B27A;border-color:rgba(240,178,122,.5);
  background:rgba(240,178,122,.12)}

/* ---- quick-action grid on the dashboard ---- */
.grid3{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:18px}
@media(max-width:900px){.grid3{grid-template-columns:1fr}}
.qa{display:block;text-decoration:none;color:var(--ink)}
.qa .qi{width:38px;height:38px;border-radius:11px;display:flex;align-items:center;
  justify-content:center;margin-bottom:10px;background:#E8EAF7}
.qa:hover{transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.qa .go{display:inline-block;margin-top:10px;font:700 13px var(--sans);color:var(--ind)}

/* ================= v13: video lecture + narrated animation clips ========= */
/* The slide-image viewer is retired.  A session opens with its full video
   lecture, then the animations that were cut out of it — all of it streamed
   from YouTube, so nothing heavy is hosted here.                            */

.ytbox{background:var(--card);border:1px solid var(--line);border-radius:16px;
  padding:10px;box-shadow:var(--shadow)}
.ytframe{position:relative;width:100%;aspect-ratio:16/9;border-radius:10px;
  overflow:hidden;border:1px solid var(--ink);background:#000}
.ytframe iframe{position:absolute;inset:0;width:100%;height:100%;border:0;display:block}

.ytwait,.ytmissing,.clipwait{display:flex;flex-direction:column;align-items:center;
  justify-content:center;gap:10px;text-align:center;aspect-ratio:16/9;
  border-radius:10px;background:var(--card2);border:1px dashed var(--line);
  color:var(--mut);font-size:14.5px;padding:20px}
.ytmissing b{color:var(--ink);font-size:15.5px;font-weight:650}
.ytmissing span{max-width:34ch;line-height:1.5;font-size:13.5px}
.ytspin{width:20px;height:20px;border-radius:50%;border:2px solid var(--line);
  border-top-color:var(--dash);animation:ytspin .8s linear infinite}
@keyframes ytspin{to{transform:rotate(360deg)}}
@media(prefers-reduced-motion:reduce){.ytspin{animation:none}}

.clipgrid{display:grid;grid-template-columns:repeat(auto-fit,minmax(330px,1fr));gap:18px}
.clipcard{margin:0;background:var(--card);border:1px solid var(--line);
  border-radius:16px;padding:10px;box-shadow:var(--shadow)}
.clipcard figcaption{padding:10px 6px 2px}
.clipcard .capname{font-size:13.5px;font-weight:600;color:var(--ink)}
.clipcard .ytmissing{font-size:13px}

.clipplay{display:block;position:relative;width:100%;aspect-ratio:16/9;padding:0;
  border:1px solid var(--ink);border-radius:10px;overflow:hidden;background:#000;
  cursor:pointer;appearance:none}
.clipplay img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;
  display:block;transition:opacity .18s ease}
.clipplay .playbtn{position:absolute;inset:0;display:grid;place-items:center;
  opacity:.92;transition:transform .18s ease,opacity .18s ease}
.clipplay:hover img{opacity:.82}
.clipplay:hover .playbtn{transform:scale(1.06);opacity:1}
.clipplay:focus-visible{outline:2px solid var(--ind);outline-offset:2px}

/* ---- lecture release gate ---------------------------------------------- */
/* The body is held back only until schedule.json is read — gate.js clears
   this, and a 2.5 s timeout clears it even if the fetch fails, so a reader
   is never left looking at nothing. */
html.gating main.wrap{visibility:hidden}

.lockcard{display:flex;flex-direction:column;align-items:center;gap:12px;
  text-align:center;margin:30px 0 8px;padding:44px 28px;
  background:var(--card2);border:1px dashed var(--line);border-radius:16px;
  color:var(--mut)}
.lockcard svg{color:var(--mut2)}
.lockcard b{color:var(--ink);font-size:19px;font-weight:650;letter-spacing:-.01em}
.lockcard span{max-width:52ch;line-height:1.6;font-size:14.5px}

.staffnote{margin:16px 0 0;padding:9px 14px;border-radius:10px;font-size:13.5px;
  background:var(--okbg);color:var(--ok);border:1px solid rgba(47,143,91,.25)}
.staffnote.warn{background:#FBF1E4;color:var(--kick);border-color:rgba(185,113,52,.3)}

/* a session not yet released reads as pending, not broken */
a.sess.locked{opacity:.62}
a.sess.locked .st{color:var(--mut)}
.lockpill{margin-left:auto;flex:0 0 auto;font:600 10.5px/1 var(--mono);
  letter-spacing:.04em;text-transform:uppercase;color:var(--mut2);
  background:var(--bg);border:1px solid var(--line2);border-radius:99px;
  padding:4px 8px;white-space:nowrap}

@media(max-width:640px){
  .clipgrid{grid-template-columns:1fr;gap:14px}
  .lockcard{padding:32px 18px}
  .lockpill{display:none}
}
@media print{
  .ytbox,.clipgrid,.lockcard{display:none !important}
  html.gating main.wrap{visibility:visible}
}

/* ---------- what's on each paper ---------- */
.sylsum{margin-top:9px;font-size:13px;color:var(--ink);line-height:1.55}
details.syl{margin-top:6px}
details.syl>summary{cursor:pointer;display:inline-flex;align-items:center;gap:6px;
  font:700 11px var(--mono);letter-spacing:.06em;text-transform:uppercase;
  color:var(--kick);padding:4px 0;list-style:none;user-select:none}
details.syl>summary::-webkit-details-marker{display:none}
details.syl>summary::before{content:"";width:0;height:0;border-left:5px solid currentColor;
  border-top:4px solid transparent;border-bottom:4px solid transparent;
  transition:transform .15s ease}
details.syl[open]>summary::before{transform:rotate(90deg)}
details.syl>summary:hover{color:var(--dash)}
details.syl[open]>summary{margin-bottom:2px}
.sylbody{margin-top:6px;border-top:1px solid var(--line);padding-top:8px}
.sylpart{font:700 11.5px var(--mono);color:var(--ink);margin:11px 0 3px}
.sylbody>.sylpart:first-child{margin-top:2px}
ul.syllist{list-style:none;margin:0;padding:0}
ul.syllist li{display:flex;gap:12px;align-items:baseline;font-size:13.5px;
  padding:6px 0;border-bottom:1px dotted var(--line)}
ul.syllist li:last-child{border-bottom:0}
ul.syllist li>b{flex:0 0 auto;min-width:26px;font:700 11px var(--mono);
  color:var(--mut);padding-top:2px}
ul.syllist li>span{display:block}
ul.syllist li em{display:block;font-style:normal;font-size:12px;color:var(--mut);
  margin-top:2px}
.sylnote{margin:10px 0 0;font-size:12px;color:var(--mut);font-style:italic}
.outlinebar{margin:14px 0 0;padding:11px 14px;border:1px solid var(--line);
  border-left:4px solid var(--dash);border-radius:10px;background:var(--card);
  font-size:13.5px;color:var(--mut);line-height:1.6}
.outlinebar a{font-weight:700}
.hero-outline{display:inline-flex;align-items:center;gap:8px;margin-top:16px;
  padding:10px 18px;border-radius:24px;background:#fff;color:#232A45;
  font-weight:700;font-size:14px;text-decoration:none;border:1px solid rgba(0,0,0,.06)}
.hero-outline:hover{transform:translateY(-1px);box-shadow:0 6px 18px rgba(0,0,0,.18)}
.grid4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:18px}
@media(max-width:1150px){.grid4{grid-template-columns:repeat(2,1fr)}}
@media(max-width:640px){.grid4{grid-template-columns:1fr}}

/* ---------- my results ---------- */
.bignum{font:700 26px/1.15 var(--mono);color:var(--ink);margin:2px 0 6px}
table.rtab{width:100%;border-collapse:collapse;margin-top:14px;font-size:13.5px}
table.rtab th,table.rtab td{text-align:left;padding:9px 12px;
  border-bottom:1px solid var(--line);vertical-align:top}
table.rtab th{font:700 11px var(--mono);letter-spacing:.06em;
  text-transform:uppercase;color:var(--kick);border-bottom:2px solid var(--line)}
table.rtab td.n,table.rtab th.n{text-align:right;font-family:var(--mono);
  white-space:nowrap}
table.rtab tr.pending td{color:var(--mut2)}
table.rtab tr:last-child td{border-bottom:0}
.note{padding:11px 14px;border-radius:10px;font-size:13.5px;margin-top:14px}
.note.bad{background:#FBECEC;border:1px solid #E7C3C3;color:#8A2B2B}
table.rtab tr.grp td{border-top:1px solid var(--line)}
table.rtab tr.grp>td:first-child{font-weight:700}
table.rtab tr.sub td{border-bottom:0;padding:3px 12px;font-size:12.5px;color:var(--mut)}
table.rtab td.ind{padding-left:26px}
b.cnt{color:var(--ok);font-weight:700}
.cnt.off{color:var(--mut2)}
.itnote{font:11px var(--mono);color:var(--mut2);white-space:nowrap;margin-left:6px}
table.rtab tr.lab>td:first-child{color:var(--ind)}